Patents Represented by Law Firm Phillips, Moore, Wessenberger, Lempio & Majestic
  • Control system for auxiliary front wheel drive
    Patent number: 4142600
    Abstract: A vehicle includes a pair of hydrostatic motors for selectively driving the front wheels thereof. Connection and disconnection between a pump and such motors is provided by means including electrical switches actuated by appropriate clutches of the transmission of the vehicle.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: March 6, 1979
    Assignee: Caterpillar Tractor Co.
    Inventor: John J. Campbell